Tribological behavior of laser-textured NiCrBSi coatings

Authors: Garrido, A.H., González, R., Cadenas, M. and Battez, A.H.

Journal: Wear

Volume: 271

Issue: 5-6

Pages: 925-933

ISSN: 0043-1648

DOI: 10.1016/j.wear.2011.03.027

Abstract:

This work presents and discusses the tribological behavior of NiCrBSi coatings obtained by diode-laser cladding and with good high-temperature antiwear behavior, textured by aNd-YAG laser to achieve good friction behavior. Different densities and distances between dimples were tested by obtaining their coefficients of friction at different sliding speeds under a load of 100. N with a CETR UMT-3 tribometer and comparing results with a non-textured NiCrBSi coating. The study led to the following conclusions: surface texturing, carried out according to the contact area, reduces the coefficient of friction throughout the speed range tested; to obtain tribological improvement, it is necessary to focus on the relationships between density, dimple diameter and contact area; smaller diameters allow higher numbers of dimples per unit of area, improving the tribological behavior; incorrect dimple density values lead to disruptive behavior, due to both high and low dimple ratios. © 2011 Elsevier B.V.

Source: Scopus

Tribological behavior of laser-textured NiCrBSi coatings

Authors: Higuera Garrido, A., Gonzalez, R., Cadenas, M. and Hernandez Battez, A.

Journal: WEAR

Volume: 271

Issue: 5-6

Pages: 925-933

eISSN: 1873-2577

ISSN: 0043-1648

DOI: 10.1016/j.wear.2011.03.027

Source: Web of Science (Lite)

Tribological behavior of laser-textured NiCrBSi coatings

Authors: Higuera, A., Gonzalez, R., Cadenas, M. and Hernandez Battez, A.

Journal: Wear

Volume: 271

Pages: 925-933

Abstract:

This work presents and discusses the tribological behavior of NiCrBSi coatings obtained by diode-laser cladding and with good high-temperature antiwear behavior, textured by aNd-YAG laser to achieve good friction behavior. Different densities and distances between dimples were tested by obtaining their coefficients of friction at different sliding speeds under a load of 100 N with a CETR UMT-3 tribometer and comparing results with a non-textured NiCrBSi coating. The study led to the following conclusions: surface texturing, carried out according to the contact area, reduces the coefficient of friction throughout the speed range tested; to obtain tribological improvement, it is necessary to focus on the relationships between density, dimple diameter and contact area; smaller diameters allow higher numbers of dimples per unit of area, improving the tribological behavior; incorrect dimple density values lead to disruptive behavior, due to both high and low dimple ratios.

Source: Manual

Preferred by: Ruben Gonzalez Rodriguez